Mitsubishi MELSEC-Q Series User Manual page 5

[Installation Instructions]
• Use the PLC in an environment that meets the general specifications contained in this manual.
Using this PLC in an environment outside the range of the general specifications could result in
electric shock, fire, erroneous operation, and damage to or deterioration of the product.
• Hold down the module-loading lever at the module bottom, and securely insert the module-fixing
hook into the fixing hole in the base unit. Incorrect loading of the module can cause a
malfunction, failure or drop.
When using the PLC in the environment of much vibration, tighten the module with a screw.
Tighten the screw in the specified torque range. Undertightening can cause a drop, short circuit
or malfunction. Overtightening can cause a drop, short circuit or malfunction due to damage to
the screw or module.
• When installing extension cables, be sure that the base unit and the extension module
connectors are installed correctly.
After installation, check them for looseness.
Poor connections could cause an input or output failure.
• Securely load the memory card into the memory card loading connector.
After installation, check for lifting.
Poor connections could cause an operation fault.
• Completely turn off the external power supply before loading or unloading the module. Not doing
so could result in damage to the product.
• Do not directly touch the module's conductive parts or electronic components.
Touching the conductive parts could cause an operation failure or give damage to the module.
[Wiring Instructions]
• Completely turn off the external power supply before starting wiring. Not doing so could result in
electric shock or damage to the product.
• When turning on the power supply or starting operation after wiring work, always mount the
product with the supplied terminal cover.
Not doing so could result in electric shock.
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CAUTION
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DANGER
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